Gerald Duffner, HAS 0741
NPI 1407605868 · Hearing Instrument Specialist · Mount Pleasant, SC
Gerald Duffner, HAS 0741 is a Hearing Instrument Specialist provider in Mount Pleasant, SC (NPI 1407605868).
Provider details
- NPI number
- 1407605868
- Entity type
- Individual
- Primary specialty
- Hearing Instrument SpecialistSpeech, Language and Hearing Service Providers
- Credential
- HAS 0741
- Sex
- Male
- Sole proprietor
- No
- License
- HAS0741 (SC)
Specialties & taxonomies
Speech, Language and Hearing Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2024-05-16
- Last updated
- 2024-05-16
- Certified
- 2024-05-16
Frequently asked questions
- What is Gerald Duffner's NPI number?
- Gerald Duffner's National Provider Identifier (NPI) is 1407605868, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gerald Duffner's specialty?
- Gerald Duffner is listed in the NPPES registry with a primary specialty of Hearing Instrument Specialist (Speech, Language and Hearing Service Providers).
- Where is Gerald Duffner located?
- Gerald Duffner's practice location on file with NPPES is 800 Johnnie Dodds Blvd Ste 109, Mount Pleasant, SC 29464-1704.
- What is Gerald Duffner's phone number?
- The practice phone number listed in the NPPES registry for Gerald Duffner is (843) 884-3399.
- Is Gerald Duffner's NPI active?
- Yes — Gerald Duffner's NPI (1407605868) is active in the NPPES registry as of the last update on 2024-05-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.